Finding the Fourth Proportional to 783,121.80, 1,174,682.70 and 689,809.80
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Solution
The fourth proportional to 783,121.80, 1,174,682.70 and 689,809.80 is: 1,034,714.70
Step by Step Solution
- Step 1: Write the proportion equation
783,121.80 : 1,174,682.70 = 689,809.80 : x - Step 2: Convert to fraction form
783,121.80/1,174,682.70 = 689,809.80/x - Step 3: Cross multiply
783,121.80x = 1,174,682.70 × 689,809.80 - Step 4: Simplify right side
783,121.80x = 810,307,638,350.46 - Step 5: Solve for x
x = 810,307,638,350.46/783,121.80 - Step 6: Final answer
x = 1,034,714.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.